17. A test for a highly penetrant mutation that is administered to an individual

Question

17. A test for a highly penetrant mutation that is administered to an individual at high risk for an adult onset disorder based on his or her family history is a A. carrier test C. predictive test B. prenatal screen D. direct-to-consumer tests 18. Nonheritable gene therapy is performed on cells C. gametic A. somatic D. constitutional B. germline 11 Chapter 20 19. Which is an example of a germline gene therapy? A. a transgenic plant or animal B. a bone marrow transplant C. a disabled cold virus that delivers genes to airway epithelium to treat cystic fibrosis D. receiving cord blood stem cells from a donor 20. DNA is directly introduced into the body in therapy, which is the most invasive type of gene therapy A. ex vivo C. in situ D. et al B. in vivo

Explanation / Answer

17.C Predictive testing

18.A Somatic Cells

19. A. A transgenic plant or animal

20.A. Ex-vivo is most invasive because it involves grafting of cells.

21.C.Subfertile. Such couples seek medical help to get pregnant.

22. True

23. A. In vitro fertilization. where fertilization is made to occur outside female body.

24.D. Preimplantation genetic diagnosis that is done for testing genetic abnormalities in embryos fertilized in vitro, and this testing is done before implanting the embryos in uterus.

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